May 17, 2007 — Chrysler Group has placed a multi-year supply contract with Metaldyne, to supply what are called "environmentally friendly exhaust manifolds for future vehicle platforms."

The term and value of the contract were not released.

Metaldyne — the Michigan-based subsidiary of Asahi Tec Ltd. — will supply fabricated manifolds that are in compliance with the PZEV (partial zero emissions vehicle) requirements for states following California emissions standards. The single-wall design involves a large chamber that allows exhaust gases to mix faster and increase the operating temperature of the catalytic converter sooner. The manifold also includes a secondary air system that injects ambient air back into the cylinder head during cold start conditions. "The ability to mix the exhaust gases at a higher rate and the use of the air injection system reduces emissions when a driver starts his or her vehicle," according to Metaldyne.

Metaldyne designs and supplies metal-based components, assemblies, and modules for engine, transmission/transfer case, wheel-end and suspension, axle and driveline, and noise and vibration control products. Its parent company Asahi Tec designs and manufactures ductile-iron cast parts for truck and construction machinery, and aluminum cast parts for trucks and passenger vehicles, as well as aluminum automotive wheels.